package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.SMSUtils;
import com.itheima.reggie.utils.SendMailUtils;
import com.itheima.reggie.utils.ValidateCodeUtils;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
@Api(tags = "用户相关接口")
public class  UserController {

    @Autowired
    private UserService userService;
    @Autowired
    private SendMailUtils sendMailUtils;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 发送手机短信验证码
     * @param user
     * @return
     */
    @PostMapping("/sendMsg")
    @ApiOperation("发送验证码接口")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){
        //获取手机号
        String phone = user.getPhone();

        if(StringUtils.isNotEmpty(phone)){
            //生成随机的4位验证码
//            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            String code = String.valueOf(ValidateCodeUtils.generateValidateCode(4));
            System.out.println(code);
            log.info("code={}",code);

            //1.1调用阿里云提供的短信服务API完成发送短信
//            SMSUtils.sendMessage("瑞吉外卖","SMS_273650137",phone,code);
            //1.2调用java邮箱发送邮箱验证码
            sendMailUtils.sendMail(phone,code);

            //2.1需要将生成的验证码保存到Session
//            session.setAttribute(phone,code);
            //2.2 将生成的验证码缓存到redis中，并且设置有效期为5分钟
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);

            return R.success("手机验证码短信发送成功");
        }
        return R.error("短信发送失败");
    }

    /**
     * 移动端用户登录
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    @ApiOperation("登录接口")
    public R<User> login(@RequestBody Map map, HttpSession session){
        log.error("<<原始信息>>controller"+map.toString());

        //获取手机号
        String phone = map.get("phone").toString();

        //获取验证码
        String code = map.get("code").toString();

        //1.1从Session中获取保存的验证码
        //Object codeInSession = session.getAttribute(phone);

        //1.2 读取redis中的验证码
        Object codeRedis = redisTemplate.opsForValue().get(phone);

        //进行验证码的比对（页面提交的验证码和Session中保存的验证码比对）
        if(codeRedis != null && codeRedis.equals(code)){
            //如果能够比对成功，说明登录成功

            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);

            User user = userService.getOne(queryWrapper);
            if(user == null){
                //判断当前手机号对应的用户是否为新用户，如果是新用户就自动完成注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                user.setName("用户"+phone);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());

            //如果登录成功，删除redis缓存的验证码
            redisTemplate.delete(phone);

            return R.success(user);
        }
        return R.error("登录失败");
    }

    @PostMapping("/loginout")
    @ApiOperation("退出登录接口")
    public R<String> logout(HttpServletRequest request){
        //清理Session中保存的当前登录员用户的id
        request.getSession().removeAttribute("user");
        return R.success("退出成功");
    }
}
